CVE-2019-3823 - CVE House
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Status published Medium CVE-2019-3823

libcurl versions from 7.34.0 to before 7.64.0 are vulnerable to...

Vulnerability Description

libcurl versions from 7.34.0 to before 7.64.0 are vulnerable to a heap out-of-bounds read in the code handling the end-of-response for SMTP. If the buffer passed to `smtp_endofresp()` isn't NUL terminated and contains no character ending the parsed number, and `len` is set to 5, then the `strtol()` call reads beyond the allocated buffer. The read contents will not be returned to the caller.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

The curl Project

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Affected Software

curl
Vulnerable Versions:
7.64.0

Timeline

Official Publish: February 6th, 2019
Last Modified: April 15th, 2026
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Weaknesses (CWE)